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A137782 as a simple table

n a(n)
0 1
1 1
2 2
3 2
4 12
5 24
6 200
7 540
8 6160
9 21616
10 306432
11 1310880
12 22338624
13 113017696
14 2245983168
15 13108918368
16 297761967360
17 1969736890624
18 50332737128960
19 372125016868608
20 10565549532009472
21 86337114225206784
22 2696451226217269248
23 24132714802787013632

[1,1,2,2,12,24,200,540,6160,21616,306432,1310880,
 22338624,113017696,2245983168,13108918368,
 297761967360,1969736890624,50332737128960,
 372125016868608,10565549532009472,
 86337114225206784,2696451226217269248,
 24132714802787013632]

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Last modified April 18 16:22 EDT 2024. Contains 371780 sequences. (Running on oeis4.)